Precise molecular orientation determination for adsorbates using x-ray photoelectron diffraction: Methoxy (O) and CO on Cu(110)
- 15 September 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 32 (6) , 4249-4251
- https://doi.org/10.1103/physrevb.32.4249
Abstract
Using photoelectron diffraction from the 1s states of carbon and oxygen with x-ray excitation, we show that while CO stands perpendicular to a Cu(110) surface, the catalytic intermediate, methoxy, is tilted. The most probable interpretation of the data involves a mixture of two species, one tilted by 18°±3° in the [11¯0] azimuth, and the other tilted by 40°±5° in the [001] azimuth. The origin of this unusual tilt is discussed.Keywords
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